What to Remember: Gilded Age Season 3 Recap Before HBO’s Period Drama Returns for Season 4

Ada takes charge at home

Oscar returns to his mother’s house after losing his fortune. The household is supported by Ada’s unexpected inheritance, and she takes control of its finances and hosts Temperance meetings. Agnes struggles with her reduced influence, but an invitation to serve as vice president of the Heritage Society gives her a new role to pursue in Season 4.

Oscar faces loss and change

Oscar finds it difficult to rebuild his reputation as a bankrupt banker. His lover, John Adams, helps him, and Oscar shows compassion when he finds Maud Beaton, the woman who stole from him.

John is suddenly killed, and Oscar grieves in private, revealing their relationship only to Marian. By the season’s end, Oscar reconnects with the widowed Mrs. Enid Winterton, who has money but few social ties. Their different advantages suggest a possible mutually beneficial marriage.

Jack and Peggy move forward

Jack sells the patent for his more accurate clock with help from Larry Russell, earning a fortune. He begins working on other inventions, while a visit from his former coworker Bridget hints at a possible romance.

Peggy leaves her newspaper job and starts writing her first novel, but a sudden illness interrupts her work. Dr. William Kirkland treats her, and the two fall in love despite his mother’s objections.

A proposal closes the season

Mrs. Kirkland tries to turn William against Peggy by sharing gossip about her past. Peggy tells him the truth about the son she lost, and William ultimately accepts her history. Season 3 ends with William proposing to Peggy, leaving their future and possible wedding plans open for the next season.